Dan bylands



llVl/E/VTOR Janfiylandw.

dn/ (Zia-17% (Q ATTORNEYS WITNESSES:

(No Model.)

METHOD OF FORMING INDENTS, 6m, IN INTERNALLY STOPPERED BOTTLES.

amwok W UNITEL STATES DAN RYLAn-Ds, or STAIRFOO'IQNIEAR BARNSLEY, oounrr OF YoRK,.-. 7

ENGLAND; w

PATENT FFIQE METHODIOF FORMING motNTs, 8L0. IN INTERINALLYQSTOPPERE'D BOTTLES.

SPECIFICATION forming part of Letters Patent No. 376,9I5,-dated January 24, 1888. Q Application filed March 24, J87. Serial No. 232,298. (No model.) Iatented in England February 19 1887, No. 2,.i80.'

To aZZ whom it may concern: l

Be it known that I, DAN RYLANDS, asubject of the Queen of Great Britain, residing at-Stairfoot, near Barnsley, in the county of York, England, have invventedtnew and useful Improvements in the Manufacture of Internally-Stoppered Bottles, (for which Letters Patent have been granted in England February 19, 1887, No. 2,580,) of which the fol lowing is a specification. .a suitable groove or under-cut, g, is formed within the said indent A. I r

This invention relates to improvements in i the method of forming indents, &c., in internally-stoppered bottles; and the objects of my improvements are to improve upon myvprevious inventions relating to that class. I attain these objects by themeans and in the mannerpointed out and described in the following specification, reference being had to the accompanying drawings, in-which Figure 1 is a sectional elevation of ,the top portion of the mold wherein the bottle is blown, and shows a section of the neck of one form of improved bottle blown therein and connected to an ordinary blow-pipe, Fig. 2 is a sectionalelevation of the improved bottle-neck blown in the mold shown in Fig. 1.

Similar letters referto similar parts.

Referring to Fig. 1, the mold M is made in two portions, m m*, which are hinged together. at the bottom in the ordinary manner. In connection with the said mold M is a spindle,

' S, a portion, 8, of which is threaded and screws through a boss, 6, which can be. attached to the part m of mold M, as shown, or can be attachedto any other suitable article.

When the mold M is prepared for receiving the viscous or molten glass for forming the bottle, the threaded end s -of the spindle S proj ects a suitable distance within the mold M, and on this projecting portion 8 of the spindle S is placed (in a suitable position) a ring'of asbestus or other suitable substance, R. The'viscons or molten glassattached to the end'of the blow-pipe Rand which has been worked up on the marver to a suitable shape by the blower, is then placed in the mold M in the usual way, after which the halves m m of the mold M are closed, and then the bottle isblown up in the mold M, as shown. The spindle S is then caused to revolve (by any suitable mechanical means) in a direction which unscrews ring of asbestos or other substance, R, within the indent A, which the end of the screwed,

portionshas formed. The bot-tleis then taken it from the mold M. In so doing it leaves the is removed from the indent A. By this means i Referring toFig. 2, the valve V is prefer-- ably made of glass, and has a square or other headyh, and a stem which has a portion, t, a recessed portion, 15, and an enlarged portion, t which is formed with suitable male threads to correspond with the female threads a,'f0,rmed V in the indent A. This enlarged portion't? has any suitablenumber of horizontal slots, m. At

rubber or other fiexible ring or'ball, to. -.Be-

fore the valve V is screwed into the indentA- I k i an india-rubber or other pliable washer, -'w, is. placed onto the recessed portion 11, and the c flexible washer or ball to is also'placed" at the bottom of the portion t 'ThevalveVis then screwed into the indent A, and the pliable washer w is pressed in along with theval've V the bottom of the'portion tis'placed an india until it arrives at the grooveor under-cut g, a when it expands and fits itself into said groove g. The'valve V is then fitted 'completely i'n theindentA, and cannot be entirelyunscrewed 'or drawn from said'indent A. By giving the head h of valve V an unscrewingtwisttheball or washerw is withdrawn or forced by meansof the pressure in the bottle from the hole 71:.

Bythis means the pressure of gas in the bottle I escapes out of said holek and passes along'the oblong slots m, after whichit passes out of,

the indent A and escapes between the head'h I and bottle-neck j s This internally -'stop pered bottle can be opened without the aid of an opener and'th'e internal stopper, F, released from itsseating it without the application of any externalmechanical force. To open the bottle, valve Vis' turned by the hand in an unscrewing direction, By this means the internal pressure fes'capes out of the hole k, when the internal stopper,

F, falls, and then the contents can be poured out. When it is required to refill the bottles, the valve V must be screwed up, so that the washer w hermetically seals the hole 70.

What I claim as new, and desire to secure by Letters Patent, is-

The method of forming indents and grooves or under-cuts in internally-stoppered bottles, which consists in placing a ring of asbestus or like material on the threaded portion of a spindle projecting into the mold which receives the molten glass, then blowing up the glass bottle in the closed mold, then withdrawing the spindle from the mold and ring, leav- DAN RYLANDS. [L. s.]

Witnesses:

THOMAS J OHNSON, AARON BOSTWIOK. 

